Emergent Phenomena Seminar 290S/QM Seminar Speaker Michal Papaj (UC Berkeley) Wednesday, September 29 at 2:00pm

Time/Venue Wednesday, September 29 at 2 pm in 402 Physics South and Zoom: https://berkeley.zoom.us/j/99523499113pwd=REovb3pyam03WXQwbEhrU3dqNHZvdz09 Meeting ID: 995 2349 9113 Passcode: 600704
Host Joel Moore
Aspects of quantum transport in topological phases of matter
Abstract In my talk, I will cover three separate areas related to quantum transport in topological phases of matter. In the first part, I will discuss a novel Hall effect in ballistic systems that preserve time-reversal, but break inversion symmetry. In the second part, I will demonstrate how disorder can lead to an effective non-Hermitian behavior of the Dirac surface states of topological crystalline insulators, resulting in an emergence of nodal arcs and tilting of the cone. Finally, I will show how the screening supercurrent induced by external magnetic field can lead to the appearance of Fermi surface in superconductors and how it can be used to create Majorana zero modes.

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